| Registro completo |
| Provedor de dados: |
Scientia Agricola
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| País: |
Brazil
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| Título: |
Meyer and schilz function to estimate common bean seed water content evaluated by radiofrequency
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| Autores: |
Berbert,Pedro Amorim
Molina,Marília Berbert
Viana,Alexandre Pio
Carlesso,Vinícius de Oliveira
Oliveira,Marcia Terezinha Ramos de
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| Data: |
2007-12-01
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| Ano: |
2007
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| Palavras-chave: |
Dielectric properties
Grain drying
Bulk density
Automatic control
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| Resumo: |
Derivation of density-independent dielectric functions for moisture determination in grains is important for the implementation of on-line sensors in automated driers. The object of this study was to investigate the Meyer and Schilz function [(epsilon'1)/epsilon"] for indirect and non-destructive water content measurement of seeds of common bean by radiofrequency, where epsilon' and epsilon" are the relative permittivity and the dielectric loss factor, respectively. Samples consisted of common bean seeds variety Campeão-3 at moisture contents ranging from 11.5 to 20.6% w.b., and bulk densities from 756 to 854 kg m-3, performing dielectric measurements in a room at 20 ± 1ºC and 66 ± 2% relative humidity. The model could estimate common bean seed moisture content with a standard error of the estimate, and maximum error of 0.5 and 1.0 percentage point in moisture, w.b., respectively.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000600002
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| Editor: |
São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
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| Relação: |
10.1590/S0103-90162007000600002
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| Formato: |
text/html
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| Fonte: |
Scientia Agricola v.64 n.6 2007
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| Direitos: |
info:eu-repo/semantics/openAccess
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